S3 MCP server

Read from the package source without running it. The installed server may list more.

• copy_object

  Copy an object within S3 (same bucket or across buckets). Copies an object from one location to another. Can be used to rename objects or move them between buckets. Example response: { "success": true, "message": "Object copied from s3://source-bucket/file.txt to s3://dest-bucket/file.txt", "etag": "\"abc123\"", "lastModified": "2024-03-01T10:00:00Z" } Use cases: - Create backups of files - Move f

• create_bucketwrite action

  Create a new S3 bucket. Creates an empty bucket with the specified name in the given region. Example response: { "success": true, "message": "Bucket created: my-new-bucket", "bucket": "my-new-bucket" } Bucket naming rules: - Must be globally unique across all AWS accounts - 3-63 characters long - Only lowercase letters, numbers, and hyphens - Must start and end with a letter or number - Cannot be

• delete_bucketwrite action

  Delete an S3 bucket. Permanently removes the specified bucket. The bucket must be empty before deletion. Example response: { "success": true, "message": "Bucket deleted: my-old-bucket" } Use cases: - Clean up unused buckets - Remove test/temporary buckets - Decommission old storage Note: The bucket must be completely empty (no objects, no delete markers) before it can be deleted.

• delete_objectwrite action

  Delete an object from S3. Permanently removes the specified object from the bucket. Example response: { "success": true, "message": "Object deleted: s3://my-bucket/path/to/file.txt" } Use cases: - Remove outdated files - Clean up temporary data - Delete processed files - Remove incorrect uploads Note: This operation is irreversible. For versioned buckets, this creates a delete marker.

• get_object

  Get the contents of an object from S3. Returns the object content as text along with metadata. Example response: { "content": "{\"name\": \"example\", \"value\": 123}", "contentType": "application/json", "contentLength": 35, "lastModified": "2024-03-01T10:00:00Z", "etag": "\"abc123\"", "metadata": {"custom-key": "custom-value"} } Use cases: - Read configuration files - Retrieve JSON data - Downloa

• head_bucket

  Check if an S3 bucket exists and is accessible. Returns whether the bucket exists and the caller has permission to access it. Example response: { "exists": true, "bucket": "my-bucket" } Use cases: - Verify bucket exists before operations - Check bucket accessibility - Validate bucket names

• list_buckets

  List all S3 buckets in the AWS account. Returns a list of bucket names and their creation dates. Example response: { "buckets": [ {"name": "my-app-data", "creationDate": "2024-01-15T10:30:00Z"}, {"name": "logs-archive", "creationDate": "2024-02-20T14:45:00Z"} ] } Use cases: - Discover available buckets in the account - Audit bucket inventory - Find bucket names for subsequent operations

• list_objects

  List objects in an S3 bucket with optional prefix filtering and pagination. Example response: { "objects": [ {"key": "data/file1.json", "size": 1234, "lastModified": "2024-03-01T10:00:00Z"}, {"key": "data/file2.json", "size": 5678, "lastModified": "2024-03-02T11:00:00Z"} ], "commonPrefixes": ["data/subdir/"], "isTruncated": false } Use cases: - Browse bucket contents - Find files matching a prefix

• put_objectwrite action

  Upload or update an object in S3. Creates a new object or overwrites an existing one with the provided content. Example response: { "etag": "\"abc123def456\"", "versionId": "v1.0" } Use cases: - Store configuration files - Upload JSON data - Create text files - Save generated content Note: This tool handles text content. For binary files, use base64 encoding or a different approach.

• Code scan39 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitystatic API keys via environment variables6/15
• Maintenancelast push 28 days ago15/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Safety score

85/100

higher than 70% of 1,119 Developer tools servers

Tools

9

the typical Developer tools server has 7

Tools that change things

44%

typical: 5%. Fewer write tools means less an agent can break

GitHub stars

80

more than 93% of 856 Developer tools servers

S3: common questions

Is S3 MCP server safe?

Yes, by our scan: it is graded A (85/100). Read the S3 safety report

How do I install S3?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does S3 need an API key?

Yes. The registry entry asks for AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY.

Is S3 maintained?

The last commit was 66 days ago (2026-08-30). The latest release is v0.0.5.

What can I use instead of S3?

Servers from other publishers that do the same job: TerraVision MCP server, cloud-audit MCP server and Cloud FinOps Skill & MCP server.

How does S3 compare with other Developer tools MCP servers?

safety score 85/100 (higher than 70% of 1,119 Developer tools servers); tools 9 (the typical Developer tools server has 7); tools that change things 44% (typical: 5%. Fewer write tools means less an agent can break). Full comparison.